1.
Fitriani F, Arifin B, Zakaria WA, Ismono RH. Kinerja Usahatani Kopi di Hulu DAS Sekampung, Tanggamus, Lampung. JPPT [Internet]. 2020 Jan. 10 [cited 2026 Sep. 17];18(3):165-74. Available from: https://jurnal.polinela.ac.id/index.php/jppt/article/view/1503